The
price
comparison
reveals
that
the
Direct
Capital
cost
for
the
Typical
Sewerage
Zone
with
Gravity
Flow
collection
system
comprising
of
Double Wall Corrugated ( DWC )
HDPE
Pipes
(inclusive
of
cost
of
sewage
lifting
stations)
is
significantly
lower
than
the
system
designed
with
RC
NP3
pipes.